package com.fly.common.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * Spring Context 工具类
 */
@Component
public class SpringContextUtils implements ApplicationContextAware
{
    public static ApplicationContext applicationContext;
    
    public static boolean containsBean(String name)
    {
        return applicationContext.containsBean(name);
    }
    
    public synchronized static <T> T getBean(Class<T> clazz)
    {
        return applicationContext.getBean(clazz);
    }
    
    public static Object getBean(String name)
    {
        return applicationContext.getBean(name);
    }
    
    public static <T> T getBean(String name, Class<T> requiredType)
    {
        return applicationContext.getBean(name, requiredType);
    }
    
    public static Class<? extends Object> getType(String name)
    {
        return applicationContext.getType(name);
    }
    
    public static boolean isSingleton(String name)
    {
        return applicationContext.isSingleton(name);
    }
    
    @Override
    public void setApplicationContext(ApplicationContext applicationContext)
        throws BeansException
    {
        SpringContextUtils.applicationContext = applicationContext;
    }
}